Clamp



FIG. 1 is a bottom perspective view of a clamp showing the new design.

FIG. 2 is a top perspective view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is a front elevational view thereof.

FIG. 5 is a rear elevational view thereof.

FIG. 6 is a front bottom view thereof; and,

FIG. 7 is a rear bottom view thereof. 

The ornamental design for a clamp, as shown and described. 